Power dist
About the Power dist PCB
Power dist is an open source PCB design by mjbots, published on GitHub under the Apache-2.0 license. It is a 4-layer board measuring 70 × 50 mm, with 31 components from 21 distinct parts.
Other key parts include the TPS2490DGSR and ZXTR2005Z-13. By type, the board carries 10 resistors, 8 connectors, 4 capacitors, 3 transistors, 3 diodes and 2 ICs.
From the project
This repository contains hardware and firmware for the mjbots powerdist and mjpower-ss boards. Both provide pre-charge, over-current limiting and connector fanout. The powerdist additionally provides energy monitoring and a soft-switch functionality.
Main components on the Power dist
Power dist bill of materials (BOM)
31 components, 21 distinct parts.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | TPS2490DGSR | SOP50P490X110-10N | U1 |
| 1 | ZXTR2005Z-13 ZXTR2005Z | SOT-89-3 | U2 |
| 3 | PSMN3R7-100BSEJ | TRANS_PSMN3R7-100BSEJ | Q1, Q2, Q3 |
| 1 | B4B-PH-SM4-TB(LF)(SN) Conn_01x04_Pin | JST_B4B-PH-SM4-TB | J2 |
| 6 | XT30UPB-F Conn_01x02_Pin | XT30UPB-F | P1, P2, P3, P4, P5, P6 |
| 1 | XT90PW-M | AMASS_XT90PW-M | P7 |
| 1 | G-107-0513 SW_SPDT | SW_G-107-0513 | SW1 |
| 1 | SMC5K51A-M3/I | D_SMC | D1 |
| 1 | APD3224ZGC-F01 LED | LED_1210_3225Metric | D2 |
| 1 | V10P15-M3/H D_Schottky | TO-277A | D3 |
| 1 | C0603C273K1RACTU 27nF 100V | C_0603_1608Metric | C1 |
| 1 | MF-CAP-0603-0.01uF 10nF | C_0603_1608Metric | C2 |
| 2 | GCM188R72A103KA37D 0.01uF 100V | C_0603_1608Metric | C3, C4 |
| 1 | MF-RES-0603-10 10 | R_0603_1608Metric | R1 |
| 1 | MF-RES-0603-1K 1k | R_0603_1608Metric | R2 |
| 1 | WSLF2512L5000FEA R_Shunt_US | WSL2512_SHUNT | R3 |
| 1 | RC0603FR-0747KL 47k 1% | R_0603_1608Metric | R4 |
| 1 | RC0603FR-076K8L 6.8k 1% | R_0603_1608Metric | R5 |
| 1 | RC0603FR-07499KL 499k 1% | R_0603_1608Metric | R6 |
| 1 | RC0603FR-07140KL 140k 1% | R_0603_1608Metric | R7 |
Show 1 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 3 | RC0603FR-073K3L 3.3k | R_0603_1608Metric | R8, R9, R10 |
Power dist design files
The KiCad project lives in the mjbots/power_dist repository on GitHub; these links point at the commit this page was built from.
Power dist: common questions
How big is the Power dist PCB?
The Power dist measures 70 × 50 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Power dist?
31 components, from 21 distinct parts. The full bill of materials is listed on this page.
Where can I download the Power dist design files?
From the mjbots/power_dist repository on GitHub, which has the KiCad layout and the schematic; the links under Design files point to each one.
Can I use the Power dist design in my own project?
Yes, under the terms of its Apache-2.0 license, which mjbots chose for the repository.